Heel-burnisher



(No Model.) 2 sheets sheet 1.

G. J. ADDY.

HEEL BURNISHER.

No. 385,291. Patented June 26, 1888.

(No Model.) v 2 Sheets-Sheet 2.

- G. J. ADDY.

HEEL BUBNISHER. I No. 386,291. Patented June 26, 1888.

' Wllllllll Darren STATES PATENT Urrrce,

CHARLES J. ADDY, OF MALDEN, MASSACHUSETTS, ASSIGNOR TO THE TAPLEYMACHINE COMPANY, OF PORTLAND, MAINE.

HEEL-BURNISHER.

SPECIFICATION forming part of Letters Patent No, 385,291, dated June 26,1888.

Application filed February 27, 1888. Serial No. 265.360. (No model.)

To aZZ whom it may concern.-

Be it known that 1, CHARLES J. ADDY, of Maiden, in the county ofMiddlesex and State of Massachusetts, have invented an Improvement inBurnishers, of which the following description, in connection with theaccompanying drawings, is a specification, like letters on the drawingsrepresentinglike parts.

My present invention consists in improvements upon that classof machinesfor burnishing the heels of boots and shoes of which the so-calledTapley machine is the exponent, and is in the line of the inventions tome patented on the 9th day of June, A. D. 1874, and numbered 151,819,and also on the 7th day of December,1880,and numbered 235,115. Themachine described in the Patent No. 235,115 contains an oscillatingshaft having fixed to it a swing block or collar having secured to it aspring, and the said swing block or collar has jointed to ita'burnishing arm or holder provided with a burnishing-tool, the said armhaving fixed to it a counterbalanceblock provided with a roll on whichbears the free end of the said spring, the roll of the said connterbala'nce-block approaching the free end of the spring as thebnrnishing-tool is forced upon the larger parts of the heel, the counterbalance-block being rigidly attached to the said burnishing-arm andmoving in unison with it while the roll referred to is traveling in thearc of a circle described from the pivotal point of the burnisher-arm.

In a machine of the class referred to it is es sen tial for the rapidburnishing of heels that the tool respond very quickly to the varyingcurvature and size of the heel under it, or else all parts of the heelare not uniformly burnished, and in practice the equalizing pressuredevices referred to have been found objectionable when the parts are notproperly oiled,for then the friction and wear between the said springattached to the swingblock and the roll of the counterbalance-block aresuch as to bind the one upon the other, so that the tool does notmaintain uniform contact with the heel during the rapid movements of themachine. To overcome this difficulty and enable the machine to workproperly at speed notwithstanding the neglect of the operator to oil thesame, I have pivoted the counterbalanceblock to the burnisher-arm, andsoshaped the free end of the spring, which spring is attached to the swingblock or collar, as to enable it to be hooked over a roll or other studcarried by the counterbalance -block, and in this way thecounterbalaneeblock, instead of moving in unison with the burnishing armand as arigid part thereof,is free to follow the movement of theburnisher-arm, and that without change of position of the free end ofthe spring as -to the roll or stud of the counterbalanceblock as thetool rises on the larger radius of the heel By pivoting thecounterbalanceblock as described, the spring in engagement with the rollor stud of the counterbalance block retains the inner end of the saidblock, and as a result thereof the distance between. the tool and theroll or stud acted upon by the said spring is sufficiently increased tocompensate for any increase in the strength of the said spring due toits compression through the rising of the burnishingarm.

Another feature of my invention consists of a new method of throwing theburnisherheads. In the so'called twin machine, patented by me May 19,1885, and numbered 318,3-10, the two heads were thrown by segmentgearsin the same direction at the same time.

In the present deviceI have substituted for the segment-gears shown insaid patentaslide or plate with two perpendicular racks by which todrive the pinions and oscillate the shafts carrying the burnisherheads.By these perpendicular racks I am enabled to simulta neously throw theburnisher-heads in. opposite instead of in the same direction, thusgreatly reducing vibration of the machine and other strains due to highspeed and momentum.

Another feature of my invention relates to a novel jack,.it containing agoose-neck hinged or jointed at its lower end to thejaok-frame at apoint practically below the center of the heel to be burnished, the saidgoose-neck having cooperating with it a cam by which to actuate it tohold firmly in place the shoe the heel of which is to be burnished.

Another feature of my invention consists in a novel and simple means foroperating the mechanism which automatically moves the jacks in and outunder the action of the tool and for raising and lowering said jacksduring such movement in and out. Forthis purpose Imount in the frame ofthe machine below the crank-shaft a secondary shaft'driven by a pulleyand belt from the said crank-shaft, the said secondary shaft throughsuitable gears operating a cam-cylinder inside the column of themachine, and above this cam is a crossrod at right angles to thecam-shaft, and upon the cross-rod are mounted two segment-leversprovided each at its lower end with a roller or other stud to enter thegroove of the cam-cylinder, the teeth of the upper end of each of thesaid levers engaging a pinion suitably journaled above the said lever,and having attached to it an arm and hook by which to move thejack inand out. These levers have arms extended out to the front of themachine,

which arms serve to raise and lower the jacks at the proper time inconnection with the inand-out movement ofthejacks under the tools.

The outwardly-extended arms referred to will preferably be slottedirregularly to form a camslot' for the reception of a roller or otherstud attached to the jack, so that the jack can be positively raised andlowered instead of being raised positively and lowered by its ownweight. This I consider on some classes of work a very desirablefeature. The groovein the cam-cylinder is of such shape as to causethejacks to simultaneously travel in and out in reverse directions. Thisfeature adds to the convenience of operating the machine.

Figure 1 in side elevation represents a burnishing-machine embodyingmyinvention, the yoke in which the jack moves being partially brokenout; Fig. 2, a detail representing a counterbalancing block detachedfrom the burnishing arm. Fig. 3 shows detached the spring whichco-operates with it. Fig. 4 is a front or left-hand end elevation of themachine shown in Fig. 1, the frame-work being partially broken out toshow some of the workingparts, one of thejacks-namely, that at theright-hand side of the machinebeing omitted. Fig.5 is a top view of thatone of the heads and shaft and burnisher-arms at the lefthand side ofthe machine and not shown in Fig. 1. Fig. 6 is a detail of thejack andcam 'co operating with it, and Fig. 7 shows the curve of thecam-cylinder laid out.

The machine herein represented contains two burnishing-heads and twojacks, and each head andjack being alike I need not particularlydescribe but one head and jack in order that my invention may be clearlyunderstood.

The frame-work A,of suitable shape to contain the working parts, hasbearings A, in

which is mounted the crank-shaft A", having fixed to it the crank-plateA, provided with a crank-pin upon which is placed a link or pitman, A*,the upper end of which, as at a,

may be all substantially as in United States Patent No. 235,115.

By reference to the drawings it will beseen that the like racks A Aengage the like pinions A A, connected to the respective shafts O G atopposite sides of the said shafts, so that as the slide A isreciprocated the said shafts and their attached parts are movedsimultaneously in opposite directions, this being done to equallydistribute the strain due to high speed and momentum, thus avoidingsh0ck.-

Each burnisher-carrying arm has pivoted to it, as at b, acounterbalance-block, H, provided with a roll or stud, Z),with which isconnected the free end of a pressure-spring, c, suitably attached at itsother end by belts or screws to the swing block or collar Dor D, as itmaybe.

As herein shown, the free end of the spring 0 is hookshaped andpartially encircles the said roll or stud, so that the engagement of onewith the other is always insured in like manner,notwithstandingvariationsin the position of the burnishercarrying arms due to varyingsize or diameter or curvature of the heel being burnished.

Usually the b'urnishing-tool first acts upon the heel at its small ortop-lift end and gradually follows up the heel to its heel-seat end, andin so doing the burnisher-carrying arm is turned about its connection orpivot 3 with substantially straight line rather than in the arc of acircle, as in the Patent No. 235,115, referred to.

By pivoting the counterbalance-block, as de scribed, and connecting thespring to it the omission of the operator to oil the roll or stud andspring will not result in any harm.

Each jack has a like post,as d, the lower end of which enters loosely apivoted step, as d, a rigid upper arm, as d of the jack, having ashouldered seat, 4, for the reception ofthe top-lift end'of the heel,and, as herein shown, a second arm, as (1 of the jack, also a rigid arm,is provided with a cam, as (2*, on ashaft or stud, (1 provided with asuitable handle.

Each jack has pivoted upon it at 5 (see Fig. 1) agoose-neckfl, the freeend of which enters the shoe, and cooperating with the shouldered seat4, serves as a firm clamp by which to hold in place the shoe the heel ofwhich is to be burnished. The cam d acts upon a lug or projection, 7,(see Fig. 6,) of the gooseneck and moves the same to clamp the shoe, aprojection, as 8, on the said cam coming in contact with the projection7 and serving as a stop to determine the extreme throw of thegoose-neck.

Each jack is made movable in a slotted guide or N, common to my PatentNo.318,34t0. The crank-shaft A has fast upon it a suitable pulley, c,which drives a belt, 6, extended over a pulley, 0 on a supplementalshaft, 6 which at its forward end (see Fig. 4) has attached to it apinion, c, which engages and rotates a toothed gear, 0 fast to a shortshaft, 6", provided in turn with a pinion, 0 which in turn engages androtates a toothed gear, 6 fast upon a shaft, 6 This shaft 6* has fastupon it a cam-cylinder, e provided with an irregular cam groove shapedsubstantially as in Fig. 7, where the said cam is shown as laid outstraight. The framework of the machine immediately above thecam-cylinder c has mounted in it a stationary rod, f, having mountedloosely upon it a sector-lever, as g, the said sector-lever havingattached to or moving with it a forwardly-extended arm, f, having acam-slot, f there being one such lever aud arm for each jack, thecam-slot referred to receiving in it a roller or other stud, as 10,attached to or forming part of a jack, so that as the leverf rises andfalls it will positively lift and then positively depress the jackrather than to let the jack descend by gravity, as heretofore.

Each sector-lever 9, there being one such lever for each jack employed,has at its lower end a roller or other stud, as 12, which enters thecam-groove 13 of the cam-cylinder, the up per end of each lever havingteeth, as 14, which engage a pinion, l5,attached to or forming part ofan arm or crank, as 16, mounted on a suitable stud and having pivoted toit at 17 a hooked arm, as 18, which engages loosely and detachably a pinor stud, as 19, forming part of or attached to one of the rigid arms11'' of thejack, the said hooked arm 18, moved by the sector-lever andcrank 16, acting to positively move the jack in and out during theoperation of burnishing the heel from its toplift toward its heel-scatend, and as the jack is moved in it is also, through the action of thelever f, moved up and down positively. The shape of the cam slot in thesaid lever is made to conform to the particular curvature of the heel,the cam portions of the said levers being in practice made detachable insuitable manner.

The shape of the cam-groove 13 in the camcylinder is such that it willmove the sectorlevers 9 simultaneously in opposite directions, so thatwhen the machine is in operation and two heels of two shoes areburnished thejacks will move in opposite directions.

As describedin thePatentNo. 318,340,]1eretofore granted to me, the twojacks and the equalizing-heads may be so handled that as the heel of oneshoe is being burnished the operator may apply a shoe to or remove ashoe from the otherjack.

My improved machine is well adapted for burnishing or finishing heels inwax and other usual ingredients. The slide or plate A is mortised out atits inner side to move upon aguideway, 15, forming arigid part of theframe.

I claim 1. In a btu'nishing-machine, the following elements, viz: aburnisher-carrying arm and a rock-shaft to actuate the said arm, acounterbalance-block pivoted to the said burnisher-carrying arm, and aspring to engage the said block and retain it while the burnisher- 'armmoves outwardly under the action of the varying shape of the heel beingtreated, substantially as described.

2. The combination, with the arms d d of the jack, of the pivotedgoose-neck and the cam for actuating the goose-neck,substantially asdescribed.

3. The jack having a stud or pin, the hook 18, crank 16, and gear 15,combined with the sector-lever and cam to operate it, substantially asdescribed.

4. Thejack having an attached roll orstud, as 10, combined with avibrating arm, as f, having a cam-slot, f, to receive the said roll orstud and raise and lower the jack, substantially as described.

5. The jack having two studs orprojections, as 19 and 10, the hook-arm18, crank 16, pinion 15, and sector-lever 14, having the carnslotted armf, combined with a cam to actuate the said sector-lever, substantiallyas described.

6. In a burnishing-machine, a jack to hold a boot or shoe the heel ofwhich is to be burnished, combined with the cam 0 a lever actuatedthereby to raise thejack and permit it to descend at the establishedtime, and intermediate connections between the said lever and jack,whereby the jack is moved automatically in and out,substantially asdescribed.

7. In a burnishingmachine, two shoe-hold ing jacks and two levers andintermediate connections between them and the said jacks,com bined witha cam-wheel to actuate both the said levers simultaneously in oppositedirections, each lever and its connections moving each jackindependently of the other both in and out under the burnishiug-tool andup and down, substantially as described.

8. The combination, with the jacks, of the drivingshaft, thesupplemental shaft 6 the gears, the cam, and the levers, andintermediate connecting devices between the said levers andjaeks tothrow thejacks in and out, substantially as described.

9. In combination, the two jacks, the camto this specification in thepresence of two snbwheel, the two levers, and connecting mechscribingwitnesses. anism between them and the two jaeks,whereby the jacks arethrown in and out from the I CHARLES A 5 machine at different timesinstead of together, WVitnesses:

substantially as described. G. W. GREGORY,

In testimony whereof I have signed my name J. (3. SEARS.

